共 14 条
[3]
ECKERT WJ, 1951, ASTRON PAPERS AM EPH, V12
[4]
GOODRICH EF, 1966, X64366133 GODD SPAC
[6]
Herget P., 1970, Bulletin of the American Astronomical Society, V2, P245
[7]
Jackson E., IN PRESS
[9]
Kuiper G.B., 1950, PUBL ASTRON SOC PAC, V62, P133